.LeftList{
    display: flex;
    flex-direction: column;
    background: #eee;
    width: 24%;
    overflow: scroll;
    position: absolute;
    height: 80%;
    .leftitem{
        height: 55px;
        font-size: 14px;
        text-align: center;
        line-height: 55px;
        color: rgb(109, 107, 107);
    }
    .leftitem.active{
        background: #fff;
        color: red;
        font-weight: 700;
    }
}